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SOUND by Mind Map: SOUND

1. SOUNDS PRODUCED BY HUMANS

1.1. Voice Box or Larynx

1.1.1. Two vocal chords

2. SOUNDS PRODUCED BY ANIMALS

2.1. Birds

2.1.1. Syrinx

2.2. Insect

2.2.1. vibrating wings rapidly

2.3. frogs

2.3.1. vocal sacs

3. Propagation of sound

3.1. all three states of matter

3.1.1. Gases,Solids and Liquids

4. Noise

4.1. Non periodic vibrations

5. Sources of Noise Pollution

5.1. various gadgets at homes

5.2. Traffic noise

5.3. Factories

6. Effect of noise pollution

6.1. Deterioration of mental health

6.2. Lack of sleep

6.3. Hearing impairment

7. SOUND MIND MAP